Wire-stitching apparatus applicable to rotary printing machines



May 7, 1929.. T, MoRfis 1,711,960

WIRE s'rmcnme AFPARATUS APPLICABLE TO ROTARY PRINTING MACHINES File 1926 8 Sheets-Sheet l I nvzuton May 7, 1929. MQRFus 1,711,960

WIRE STITCHING APPARATUS APPLICABLE TO ROTARY PRINTING MACHINES Filed Dec. 9, 1926 s Sheets-Sheet 2 INvENmR y 9 19290 E. T. MORRIS 1,711,960

WIRE STITCHING APPARATUS APPLICABLE TO ROTARY PRINTING MACHINES Filed De0.-9, 1926 8 Sheets-Sheet 3 Y J .5 /5 E I ll 9 Q luvauton 3 v p 54%;) lfm 7mm May 7, 1929. MORRls 1,711,960

WIRE STITCHING APPARATUS APPLICABLE TO ROTARY PRINTING MACHINES Filed D80- 9, 1926 8 Sheets-Sheet 4 E. T. MORRES May 7', I929;

WIRE S'I'ITCHING APIARATUS APPLICABLE TO ROTARY PRINTING MACHINES Filed Dec. 9, 1926 8 Sheets-Sheet IN V E N TO R NJ 7 ZL/W Arrvs.

, 3 W 9 1929- E. T. MORRIS WIRE STITCHING APjARATUS APPLICABLE TO ROTARY PRINTING MACHINES Filed Dec. 9, 1926 8 Sheets$heet ENVENTOW (W./ Twin/Q0 7 W (f/g E. T. MURRIS WIRE STITCHING APPARATUS APPLICABLE TO ROTARY PRINTING MACHINES 8 Sheets-Sheet 7 Filed Dec. 9, 1926 INVENTQR Patented May 7, 1929.

UNITED STATES PATENT OFFICE.

EDWARD THOMAS MORRIS, QF LONDON, ENGLAND, ASSIGNOR TO R. HOE & op' md, OF NEW YORK, N. Y., A CORPORATION OF NEW' YORK.

WIRE-STITCHYNG APPARATUS APPLICABLE TO ROTARY PRINTING MACHINES.

Application filed December 9, 1926, Serial No. 153,715, and in Great Britain August 13, 1938.

This invention relates to improvements in wire stitchin apparatus applicable to rotary printing mac llIlQS, of the type comprising a stitching cylinder, stitching plungers mounted thereon. a folding cylinder. anvils carried by said folding cylinder adapted to cooperate with said stitching plungers, and a cam for operating said plungers.

Hitherto in machines commonly" in use the cam has been fixed with the result that when it was desired to stitch a product composed of any two sheets, or oi say four sheets, or not to stitch the sheets at all, it was necessary to change substantially the whole of the operating mechanism.

The object of this invention is to provide a stitching machine which can easily be varied to suit the desired product.

According to this invention the cam is adapted to be rotated at a speed different from that of the stitching cylinder and means are provided for varying the profile of said cam.

In one form of construction the cam comprises two circular portions and a air of diametrically opposed members pivotally mounted on said cam each of said members being provided with a pair of faces one of which is of the same curvature as the circular portion of the cam, and is adapted to form a continuation thereof. whilst the other is of a shape which differs from the said circular portion.

The cam is rotated at. a speed which is different from that of the stitching cylinder say one and a half times as fast as the speed of rotation of the stitching cylinder which co-operates with the folding cylinder. The folding cylinder is provided with three anvils one or other of which clinches the wire staple after the said staple has been pressed through the sheets to be stitched by one or other of three stitching plungers, each of which is carried by the stitching cylinder and is provided with a roller or the like bearing upon the periphery of the cam. The wire forming the staple is delivered to the stitching plungers and is bent to the required shape by horn guides in a manner which is well known.

Means such as a spring pressed ball may be provided to posit-ion the members on the cam.

Figure 1 is an end elevation of the cam;

Figures 2 to 7 inclusive are diagrammatic views showing successive positions of the parts when the mechanisms are arranged so as to stitch four sheets;

Figure 8 is an end elevation, morein detail. of the stitching and folding cylinders arranged so as to stitch four sheets;

Figure 9 is a view similar to Figure 8 showing the arrangement of the parts when operating to stitch two sheets;

Figure 16 is an end elevation similar to Figures 8 and 9 showing the parts arranged so as not to stitch any of the sheets;

Figure 11 is a top or plan view, partly in section, showing the drive for the cam and the stitching cylinder;

Figure 12 is a detail view, partly broken away, the view being taken on line 12-42 of Figure 11, and Figure 13 is a detail of the means for hold- H10 the cam parts in adjusted position.

.efcrrin more particularl to Figure 1, 1 is a cam iody having'two circularly faced portions 2, 3 and a pair of diametrically opposed members 4, 5, pivotally mounted at 6, 7 to the body 1. Each member 4, 5 is provided with faces 8, 9 one face 8 being of the same curvature as that of the circularly faced portions 2, 3, whilstthe face 9 is of a curvature or shape which differs from the said ortions 2, 3. Means such as a spring presse ball 10 is provided to position the said members 4, 5. The cam body 1 is rotatably mounted upon the shaft 11 of a stitching cylinder 12, and is rotated at a speed which is oneand a half times as fast as the speed of the cylinder by means of suitable gearing. This gearing may be of any suitable character but, as shown in Figures 11 and 12, includes a gear 100 on the shaft 11 of the stitching cylinder 12, which gear is in mesh with and drives a pinion 101 on a cross-shaft 101'. this shaft having a gear 102 in mesh with a gear 103 secured to the cam 1, these parts being proportioned to rotate the cam at a speed one and one-half times as fast as the speed of the cylinder. This proportion of the gears may be varied by adiusting the position of a gear 104 by means of a hand-wheel 105.

The stitching plungers are indicated by the numerals 13. 14. 15 and are carried by arms 13, 14', 15 pivotally supported on rockshatts v13, 14". 15" mounted in the cylinder 12. These plungers are operated by cam rollslfi. 17. 18 when such rolls are engaged by the irregular faces 9 of the movable parts 4, 5 of the cam, these cam rolls being support ed in any suitable manner, as by arms 16, 17, 18 fast with the arms 13 ,14, 15, before referredto. The cam rolls are maintained in operative contact with the cam surfaces by means of springs, which are marked 16, 17, 18

Cooperating with the stitching cylinder 12 is a folding cylinder provided with three anvils 13, 14, 15", of any usual type, which cooperate with one or the other of the stitching plungcrs 18, 14, 15 to clinch a wire staple which has been delivered to the stitching plunger-s by any usual staple feeding mecha nism, not illustrated. This folding cylinder l." a driven cylinder and may be conveniently riven from the cylinder 12 by a gear 110.

This folding cylinder is provided with detachable folding blades 21, 21-22, 22 and 23, 23, rotated in the usual manner, and the cylinder is also provided with the usual sheet taking pins 24, 25, 26, which take the sheets passing to the folding cylinder. Cooperating with the folding cylinder 19 are the usual folding rolls 27, 28 into which the sheets are tucked by the folding blades.

The staple wire is formed, as is usual, by passing through the stapling born 20 by one or the other of the plungers 13, 1 1, 15.

The operation of the mechanism is illustrated in the drawings, in which Figures 1 to 8 show the different positions of the parts, the cam members 4, 5 being set so that four sheets are stitched.

In this case, the members 4, 5 are in the po sit-ion shown in Figure 1 and one of each pair of folding blades is removed. From these figures, it will be seen that the stitching plunger 15 is not operated by the member 5 so as to receive a length of stitching wire, whereby the sheet which passes between-the stitching cylinder 12 and the folding cylinder 19 and which is caught by one of the pins 24, 26 is not stitched. It will be seen that because the folding blade which would normally have forced this sheet into the nip of the-folding rollers 27, 28 has been removed (see Figure 8) the sheet is retained in position on the folding cylinder by the pins and passes around with the said cylinder. The stitching plunger 14 is then operated by the member 4c, whereby sheets which in a similar manner to those above described were not affected and which pass around with the ment alternate sheets are not stitched on first passing to the cylinder .12, but eventually become associated with and stitched to sheets which are for the first time passing thereto.

If it be desired to stitch two sheets, all the folding blades are left in position on the folding cylinder and the member 5 is turned by hand through 180 so that that part of the cam 5 which was inoperative now becomes operative, as shown in Figure 9. In this position each stitching plunger will be operated and therefore each pair of sheets as they pass to the stitching cylinder 12 will be stitched, the sheets being eventually forced by one or the other of the folding blades into the nip of the folding rollers 27, 28.

If, however, it be desired not to stitch the sheets, each of the members 1, 5 isturned by hand through 180 so that the faces 8 thereof are in line with the circularly faced portions 2, 3, in which position none of the stitching plungers is operated to receivea length of stitching wire, and thus none of the sheets are stitched as they pass between the cylinders 12 and 19, as shown in Figure 10.

The apparatus which feeds the wire to the stitching plungers is provided with any convenient means for controlling the feed of said wire according to whether each stitching plunger, each alternate stitching plunger, or none of the plungers is or are operated (not shown).

What I claim is 1. In a wire stitching apparatus for use in rotary printing machines, the combination of a stitching cylinder, means for rotating said cylinder, stitching plungcrs mounted on said cylinder, a folding cylinder, means for rotating said folding cylinder, anvils carried bysaid folding cylinder and adapted to cooperate with said stitching plungers, a cam for operating said stitching plungers, means for rotating the cam at a speed different from that of the stitching cylinder, and means for varying the profile of said cam.

2. In a wire stitching apparatus for use in rotary printing machines, the combination of a stitching cylinder, means for rotating said cylinder, stitching plungers mounted on said cylinder, a folding cylinder, means for rotating said folding cylinder, anvils carried by said folding cylinder and adapted to cooperate with said stitching plungers, means for operating said stitching plungers, .said means comprising a cam having circular portions, members mounted on said cam, a pair of faces on each member, one of said faces being of the same curvature as the circular portions of said cam, and the other face being of a shape different from said circular portions', means for allowing movement of either of said faces into alinement with said circular portions, and means for rotating said cam ata speed different from that of the stitching cylinder.

3. In a wire stitching apparatus for use in rotary printing machines, the combination of a stitching cylinder, means for rotating said cylinder, stitching plungers mounted on said cylinder, afolding cylinder, means for rotating said folding cylinder, a'nvils carried by said folding cylinder and adapted to cocurvature as the circular portions of the cam,

and the other face being of a shape different from said circular portions, means for rocking said members upon their ivot so that either of said faces on said mem ers is moved into alinement with said circular portions, and means for rotating said cam at a speed different from that of the stitching cylinder.

4. In a wire stitching apparatus for use in rotary printing machines, the combination of a stitching cylinder, means for rotating said cylinder, stitching plungers mounted on said cylinder, a folding cylinder, means for rotating said folding cylinder, anvils carried by said folding cylinder and adapted to 00-0 erate with saidstitching plungers,

means or operating said stitching plunger-s,

said means comprising a cam having circular portions, members mounted on saldcam, a pair of faces on each member, one of said aces being of the same curvature as the circular portions of said cam, and the other face being of a shape different from said circular portions means for allowing movement of either of said faces into alinement with said circular portions, means for positioning the members relatively'to the circular portions of the cam, and means for rotating said cam at a speed different from that of the stitching cylinder.

5. In awire stitching apparatus for use in rotary printing machines, the combination of a stitching cylinder, means for rotating said cylinder, stitching plungers mounted on said cylinder, a folding cylinder, means for rotating said folding cylinder, anvils carried by said folding cylinder and adapted to co-operate with said stitching plungers, means for operating said stitching plungers, said means comprising a cam having circular portions, a pair bf diametrically opposed members, means for pivoting said members on said cam, a pair of faces on each of said members, one of said faces being of the same curvature as the circular portions of the cam, and the other face being of a shape different from said circular portions, means for rocking said members upon their pivot so that either of said faces on said members is moved into alinement with said circular portions, means for positioning the members relatively to the circular portionsof the cam, and means for rotating said cam at a speed different from that of the stitching cylinder.

6. In awire stitching mechanism, the combination of a rotary cylinder, stitching mechanism mounted on the cylinders, a cam for operating the stitching mechanism and having movable operating faces, and a cooperating folding cylinder.

7. In a wire stitching mechanism, the combination of a rotary cylinder, stitching mechanism carried thereby, a cam having pivoted portions for operating the stitching mechanism, and a cooperating'folding cylinder;

In testimony that I claim the foregoing as my invention I have signed my name this 19 day of November, 1926.

EDWARD THOMAS MORRIS. 

